This shows the commands needed to setup and run multi trac environments in a specific way:
cp create_sample_environment ./create_myproject_environment
$adminuser = "user"; ->
$adminpass = "password";
$env_name = "watambaX";
$env_base = "/opt/womd_trac";
$repo_path = "/opt/womd_svn/FB20XX";
$repo_typ = "svn";
php create_myproject_environment
in file: show_tracd_start_script
-edit configuration, set the directory where your trac environments life
$env_base = "/var/trac";
run it, it will echo the command for starting all the environments.
php how_tracd_start_script